Hydraulic dredge.



No. 714,996. Patented Dec. 2, |902.

L. W. BATES.

HYDRAULIC DBEDGE.

(Application tiled Aug: 2B, 1900; Renewed May 5, 1902.)

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No. 714,996. l Patented uw. 2, |992.-

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HYDRAULIC DREDGE.

(Application lefl Aug. 28, 1900. Renewe'd May 5, V1902.) (No Manel.) 3 sheets-sheet 2.

Patented Dec. 2, |902. L. W. BATES. HYDRAULIKC DREDGE. (Application filed Aug. 2B, 1900. Renewed. Hay 5, 1902.)

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UNTTED STATES PATENT OFFICE.

LINDON VALLACE BATES, OF CHICAGO, ILLINOIS.

HYDRAULIC DREDGE.

SPECIFICATION forming part of Letters Patent No. 714,996, dated December 2, 1902.

Application led August 28, 1900. Renewed Be it known that I, LINDoN WALLACE BATES, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Hydraulic Dredges, of which the following is a specification.

My presentinvention pertains to improvements in hydraulic dredges, and relates more particularly to the mechanism for controlling` the discharge-stream as it issues from the floating discharge-pipe, and consequently to the position of said pipe.

The invention is related more or less directly to that shown and described in Letters Patent of the United States granted to me under date February 2, 1897, and in my pending application filed on or about July 13, 1900, Serial No. 23,511.

The object of this invention is to provide a different mounting for the battle-plate, to so construct it that it need not be shifted bodily across the line of discharge, but simply turned so as to vary its angular position with relation to the discharge.

In the accompanying drawings, Figure 1 is a top plan view, partlyin section, of the end section of a discharge-pipe With the baffleplate attached thereto; Fig. 2, a vertical sectional vieW thereof; Fig. 3, a side elevation of one form of shifting device for the bafiieplate; Fig. 4, a top plan view of the same; Fig. 5, a top plan view of a modified form of shifting apparatus, and Fig. 6 a side elevation of the same.

Referring rst to Figs. 1 to 4, inclusive, A designates the end pontoon, and B the discharge 'end of the pipe carried thereby. Extending outwardly in rear of said pontoon in line with the discharge-pipe are braces or brackets C C, provided with bearings D, in which is mounted a vertically-disposed shaft or spindle E. Arms or brackets F are keyed to said shaft or spindle E, as will be clearly seen upon reference to Figs. 1 and 2, and to the outer ends of said arms or brackets is secured the baffle-plate, composed of or comprising the two curved members G, coming to a point or apex at c in line With the mouth 0f the discharge-pipe B. The form of this baIie-plate may be that shown in my patent May5,l902. SerialNu.105,982. (Nomodel.)

above referred to or'that of my application now pending, also above alluded to.

To rotate the shaft or spindle E, and consequently to vary the position of the bafIie-plate with relation to the discharge-pipe, there is secured to the upper end of the shaft or spindle E a sector gearorquadrant H, with which meshes a worm I, mounted upon a shaft J, which shaft is supported in suitable bearings secured on the brackets or braces C, or the pontoon.

An operating-Wheel K is mounted upon the inner end of the shaft J. By turning said wheel and the shaft the position of the baffleits apex to one or the other side of the central point of the discharge-pipe, and consequently deflecting the discharge-stream to one side to a greater extent than to the other, which will of necessity vary the position of the pontoon-line.

The Worm and quadrant form a self-locking device for the baffle-plate, no matter what may be its adjusted position, and this construction is of course advantageous.

In Figs. 5 and 6 is shown a modified form of means for varying the position of the baffleplate. To the upper end of the shaft or spindle E is secured an arm or bracket L, having formed integral therewith upon its outer ends curved plates or quadrant members M, to which are attached the ends of a strap or band N, which passes-under pulleys O and about a grooved drum P, carried by a shaft mounted in suitable standards secured to the pontoon. A capstan or operating-wheel Q is secured to one end of the shaft which supports the drum. The operation of this construction is obvious. Any means which will rotate the shaft, and consequently vary the position of the batfle-plate,may be employed, though, by preference, one which is self-locking will be used, as its advantages are manifest. Y

.Having thus described my invention, what I claim is 1. In combination' with the discharge-pipe of a dredge, a fixed support extending out rearwardly therefrom in line With the pipe; a baffle-plate pivotally mounted on said support, the pivotal point of said plate being in plate may be varied as desired, throwing,

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approximate alinement with the axis of the pipe; and means for swinging said plate about its pivot.

2. In combination with the discharge-pipe 0f a dredge, a fixed support extending out rearwardly therefrom in line with the pipe; a baffle-plate pivotally mounted on said support in line with the pipe, said plate being of the saine contouren opposite sides of the pivotal point; and means for varying the position of said plate and maintaining it in its adjusted position, substantially as described.

3. In combination with the discharge 0r delivery pipe of a dredge, a baffle-plate pivotally mounted in line with said pipe and havingr divergent faces, and means for moving said bafIie-plate about its pivot, whereby its apex will be thrown to one or the other side of the center of said pipe.

4. In combination with a pontoon, a disname to this speoiiioation in the presence of 35 two subscribing witnesses.

LINDON WALLACE BATES. W'itnesses:

EDMUND S. SNEWIN, WVM. O. BROWN. 

